:root{
  --blue:#3a76f0;--dark-blue:#2c5ed4;--navy:#1b2c59;
  --dark:#1b1f28;--gray:#5c6370;--light:#f5f6fa;--border:#e1e4ed;
  --white:#fff;--font:'Segoe UI',system-ui,Arial,sans-serif;
  --radius:10px;--shadow:0 2px 14px rgba(58,118,240,.12);
}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:var(--font);color:var(--dark);background:var(--white);line-height:1.65}
a{color:var(--blue);text-decoration:none}
a:hover{text-decoration:underline}

header{position:sticky;top:0;z-index:100;background:var(--white);border-bottom:1px solid var(--border);padding:0 24px}
.nav-inner{max-width:1200px;margin:0 auto;height:64px;display:flex;align-items:center;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.1rem;color:var(--dark);text-decoration:none}
.logo:hover{text-decoration:none}
.logo-icon{width:32px;height:32px;flex-shrink:0}
.logo-text{color:var(--navy)}
nav{display:flex;gap:2px;margin-left:auto;align-items:center;flex-wrap:wrap}
nav a{padding:8px 13px;border-radius:5px;font-size:.9rem;color:var(--gray);transition:background .2s}
nav a:hover{background:var(--light);text-decoration:none;color:var(--dark)}
nav a.active{color:var(--blue);font-weight:600}
.btn-dl{background:var(--blue);color:#fff!important;border-radius:5px;padding:9px 20px;font-size:.9rem;font-weight:600;transition:background .2s;margin-left:6px}
.btn-dl:hover{background:var(--dark-blue);text-decoration:none!important}

.hero{background:linear-gradient(135deg,#1b2c59 0%,#2c5ed4 55%,#3a76f0 100%);padding:90px 24px 80px;text-align:center;color:#fff}
.hero h1{font-size:2.65rem;font-weight:800;line-height:1.2;margin-bottom:16px}
.hero h1 em{font-style:normal;color:#93c5fd}
.hero p{font-size:1.15rem;opacity:.9;max-width:600px;margin:0 auto 36px}
.hero-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.btn-primary{background:#fff;color:var(--blue);padding:14px 38px;border-radius:6px;font-size:1rem;font-weight:700;display:inline-block;transition:opacity .2s;box-shadow:0 2px 12px rgba(0,0,0,.15)}
.btn-primary:hover{opacity:.9;text-decoration:none;color:var(--blue)}
.btn-outline{border:2px solid rgba(255,255,255,.7);color:#fff;padding:12px 36px;border-radius:6px;font-size:1rem;font-weight:600;display:inline-block;transition:all .2s}
.btn-outline:hover{background:rgba(255,255,255,.15);text-decoration:none;color:#fff}
.hero-badge{margin:28px auto 0;display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.3);border-radius:50px;padding:8px 22px;font-size:.88rem;color:rgba(255,255,255,.92)}
.badge-dot{width:8px;height:8px;border-radius:50%;background:#4ade80;display:inline-block;flex-shrink:0}

.section{padding:64px 24px;max-width:1200px;margin:0 auto}
.section-title{font-size:1.9rem;font-weight:700;text-align:center;margin-bottom:10px;color:var(--dark)}
.section-sub{text-align:center;color:var(--gray);font-size:1.05rem;margin-bottom:40px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:22px}
.card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;transition:box-shadow .2s}
.card:hover{box-shadow:var(--shadow)}
.card-icon{width:46px;height:46px;border-radius:10px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;font-size:1.4rem}
.icon-blue{background:#eff6ff}.icon-green{background:#f0fdf4}.icon-purple{background:#faf5ff}.icon-teal{background:#f0fdfa}
.card h3{font-size:1rem;font-weight:700;margin-bottom:8px;color:var(--dark)}
.card p{font-size:.9rem;color:var(--gray);line-height:1.75}

.dl-banner{background:linear-gradient(90deg,#1b2c59 0%,#3a76f0 100%);color:#fff;padding:60px 24px;text-align:center}
.dl-banner h2{font-size:2rem;font-weight:700;margin-bottom:12px}
.dl-banner p{font-size:1.05rem;opacity:.88;margin-bottom:28px}
.btn-white{background:#fff;color:var(--blue);padding:14px 40px;border-radius:6px;font-size:1rem;font-weight:700;display:inline-block;transition:opacity .2s}
.btn-white:hover{opacity:.9;text-decoration:none;color:var(--blue)}
.platforms{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:32px}
.plat{background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.25);border-radius:var(--radius);padding:14px 26px;text-align:center;min-width:120px}
.plat-name{font-size:.82rem;margin-top:6px;opacity:.85}

.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:22px;counter-reset:step}
.step{background:var(--light);border-radius:var(--radius);padding:32px 20px;text-align:center;position:relative}
.step::before{counter-increment:step;content:counter(step);position:absolute;top:-14px;left:50%;transform:translateX(-50%);background:var(--blue);color:#fff;width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.9rem}
.step h3{font-size:1rem;font-weight:700;margin-bottom:8px;color:var(--dark)}
.step p{font-size:.88rem;color:var(--gray)}

.faq-list{max-width:800px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--border)}
.faq-q{width:100%;background:none;border:none;padding:18px 0;display:flex;justify-content:space-between;align-items:center;font-size:1rem;font-weight:600;color:var(--dark);cursor:pointer;text-align:left;gap:12px}
.faq-q::after{content:'+';font-size:1.5rem;color:var(--blue);flex-shrink:0;line-height:1;transition:transform .2s}
.faq-item.open .faq-q::after{transform:rotate(45deg)}
.faq-a{display:none;padding:0 0 16px;font-size:.93rem;color:var(--gray);line-height:1.8}
.faq-item.open .faq-a{display:block}

.kw-cloud{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:16px}
.kw-tag{background:var(--light);border:1px solid var(--border);border-radius:50px;padding:5px 16px;font-size:.83rem;color:var(--gray)}

footer{background:var(--dark);color:#9ca3af;padding:44px 24px 24px}
.footer-inner{max-width:1200px;margin:0 auto}
.footer-nav{display:flex;flex-wrap:wrap;gap:32px;margin-bottom:32px}
.footer-col h4{color:#f3f4f6;font-size:.92rem;margin-bottom:12px;font-weight:600}
.footer-col a{display:block;color:#9ca3af;font-size:.85rem;margin-bottom:8px;text-decoration:none}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid #374151;padding-top:20px;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;font-size:.82rem}
.partner{color:#d1d5db;font-size:.85rem}

@media(max-width:768px){
  .hero h1{font-size:1.8rem}
  .nav-inner{flex-wrap:wrap;height:auto;padding:12px 0;gap:10px}
  nav{margin-left:0;flex-wrap:wrap}
  .section{padding:40px 16px}
  .dl-banner{padding:40px 16px}
}